Here's a short list of some relevant sites out there:
Tight Skirts Page - a reference on all manner of tight skirts, including long ones. Tight Tales - corset-oriented fiction that frequently includes hobble skirts. Yahoo Long Tight Skirt Club - just what the title says. Rubberella's Homepage - it's cheaper, there's more options - make your own hobble skirt! Hired Help - an epic work of fetish fashion/bondage fiction, with lots of hobble skirt scenes. Lady Charis' Gothic/Fetish Gallery - photos of the said lady, including a few in a hobble skirt. Alana - a fetish photographers session with a model wearing a Stormy Leather hobble skirt. What She Wants - a review of Versatile Fashions, with shots of on of their hobble skirts. Skirt Training Fundamentals - just in case you're not sure how to walk in a hobble (or other) skirt. Hobble Skirt Postcards - a few of the old postcards satirizing the fashion. Wingeo - 1910's style hobble skirt sewing patterns. Electric Blues Web Page - how to model a hobble skirt using Poser 3D software. First View - thousands upon thousands of runway photos from fashion shows, including those of hobble skirts. Long Island Staylace Association - the authority on the web for the pefect compliment to the hobble skirt - corsets. Fetish Kitten - the best directory to fetish-related apparel and accessory shopping on the web. Belier Press - publisher's of Sweet Gwendoline by John Willie, the '50s patron saint of fetish, including hobble skirts.